Grease-gun-charging device



H. KREIDEL I cmnsz GUN cmmsmo- Dimer:

Attorneys Patented Aug. 21, 1928.

UNITED TAT'ESi PATENT. OFFICE.

HANS xnnrnnnor WIESBADEN, enniuni ennAsn-eun-onnname: 'nnvron.

. Application filed July 14., 1925, Serial No. 43,541, and in Germany myrz, 1924., v

The invention relates to a device for charging grease into grease pumps or grease guns, of the known type, and consists of a longitudinally slotted tubular scoop open at the bottom for insertion into the pump press cylinder and a removing device guided in the slot thereof. The removing device also includes a plate portion having the same-internal diameter as the scoop. r I 1 According to the invention the grease scoop, which is closed atthetop has its cylindrical wall provided directly below said top with a transverse slot extending inboth directions from the longitudinal slot adistance such that the entire length of said transverseslot is at least equal to the semi-circumference ofthe scoop in order to enable" the plate portion of the removing device to be inserted laterally into the scoop when the latter is full. In addition to the plate portion the removingdevice is also provided with a recess corresponding with the external contour of the grease scoop, with which it is possible to easily clean the outer surface of the scoop by scraping away any grease which may cling thereto and by which the column of grease can be spread smoothly along the longitudinal slot of the scoop to form with the contents of the interior of said scoop a complete cylindrical column. s

For the the purpose of filling the grease scoop the grease is pressed or forced into it.

moving device into the scoop which has been uniformly filled with grease so that uniform quantities of grease can always be conducted into the cylinder of the grease pump or grease gun. The construction of the removing device having a scraper with a recess fitting the periphery of the grease scoop permits on the one hand the convenient and ready cleaning of the grease scoopby the removal of any grease adhering to the outside thereof, and on the other hand permits of smoothly spreading thecolumn of grease and rendering this of uniform diameter throughout so that when driven out from the scoop it passes into the cylinder of the grease pump -or grease gun without shock and of substantially circular section.

as seen from the side thereof in which the longitudinal slot is provided. l i 1 Figure 2 is" a transverse cross section. Figure 3 is a sideview taken at right angles to the view shown in Fig. 1.

Figure i is a transverse cross section of i Fig. 3.

Figure ,5lshows the removingdevice in side elevation, and v Figureh shows a perspective view of device in use. J I The scoop a is open atlthe front end andis provided with a longitudinal slot 1) and with atop 'c to which issecured a handle 03 so as the to permitof the ready handling thereof. The chmensionsof the scoop are such that it. fits intothe cylinder or, the grease pump or grease gun to be filled, e is the grease remov-v ing'device which is provided witha plate f adapted to fit neatly but slidably within the scoop a and also provided with a guide portion g adapted to'fit slidably withih the the grease scoop is also provided with a transverse slot is extending in both directions from the longitudinal slot '6 to points substantially 90 from the center line of the longitudinal slot, so that the transverse slot extends not less than 180 about the periphery of the scoop to permit the plate shaped part 7 of the removing device to be inserted laterally into the interior of the scoop after the latter has been filled. When filling grease pumps or grease gun cylinders the operation is as follows:

The full length of the grease scoop is inserted into the grease can and a column of grease is cut out and pressed into the interior of the scoop by turning it one or more times about its axis. The recess h of the removing device 6 is then placed upon the exterior of the scoop and moved longitudinally along all sides thereof to scrape off any excess grease and to smooth such greaseas may protrude from the slot 5 into a curved outer surface and thereby form a complete cylinder of grease. The plate end f of the scoop is then inserted laterally into the transverse slot is and the scoop is now inserted to its full length into the open cylinder of the grease pump or grease gun. The removing device e-is held or pressed with one hand against the open end of the cylinder of the pump or gun-and the grease scoop is withdrawn by theother hand thereby transferring an uninterrupted column of grease from the scoop into the cylinder of the pump or gun (Fig. 6). As will be readily understood the insertion of the removing device 6 into the transverse slot Zc-must be efiected in such a manner that its guide portion 9 will aline with and fit into the longitudinal slot b of the scoop so'that rel ative sliding movement between the removing device and scoop mayoccur when the scoop is withdrawn from the pump or gun cylinder. Having thus described my invention'what I claim as new and desire to secure by Letters Patent is 1. A device for filling grease into grease pumps or grease guns comprising a tubular scoop adapted to fit intothe cylinder of the grease gun, said scoop being open at one end and closed at the other and having a longitudinal slot extending along 'thewhole length thereof,said scoop also having a transverse slot adjacent its closed end and extending at least 180 about its periphery, and a discharging member having a 'portion'thereo'f dimensioned to fit within said scoop and to be passed laterallyinto said scoop through said transdevice for filling grease into the cylinders of grease guns comprising a scoop open" atone end and closed at the other, said scoop" having alongitudinal slot extending along' the whole length thereof, the external diameter ofthescoop' corresponding with the in- I ternal diameter of said cylinder, saidscoop having atransverse slot adjacent its closed endand extending equallyon either *side of said longitudinal slot and at least 180? about the periphery'ofsaid scoop, *and'a scraper: adapted to be fittedinto thetransverse slot have signed my and guided by the longitudinal slot.

In testimony whereof I name to this specification.

HANS KRE'IDEL. 

